Electrocatalytic Activity Enhancement of Pd Nanoparticles Supported on Reduced Graphene Oxide by Surface Modification with Au

2017 ◽  
Vol 164 (9) ◽  
pp. H696-H700 ◽  
Author(s):  
Changchun Jin ◽  
Cuicui Wan ◽  
Rulin Dong
Keyword(s):  
Surface Modification ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Electrocatalytic Activity ◽  
Pd Nanoparticles ◽  
Reduced Graphene ◽  
Activity Enhancement

Preparation and enhanced electrocatalytic activity of graphene supported palladium nanoparticles with multi-edges and corners

RSC Advances ◽  
2016 ◽  
Vol 6 (101) ◽  
pp. 98708-98716 ◽  
Author(s):  
Zhelin Liu ◽  
Yinghui Feng ◽  
Xiaofeng Wu ◽  
Keke Huang ◽  
Shouhua Feng ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Electrocatalytic Activity ◽  
Palladium Nanoparticles ◽  
Pd Nanoparticles ◽  
Reduced Graphene ◽  
Point Discharge ◽  
Supported Palladium ◽  
Activity Point

Pd nanoparticles with multi-edges and corners are prepared and assembled on reduced graphene oxide to examine the electrocatalytic activity. Point discharge is regarded to be capable of facilitating the electron transfer.

scholarly journals The effect of surface modification by reduced graphene oxide on the electrocatalytic activity of nickel towards the hydrogen evolution reaction

2015 ◽  
Vol 17 (40) ◽  
pp. 26864-26874 ◽  
Author(s):  
Debabrata Chanda ◽  
Jaromír Hnát ◽  
Ana S. Dobrota ◽  
Igor A. Pašti ◽  
Martin Paidar ◽  
...  
Keyword(s):  
Surface Modification ◽  
Graphene Oxide ◽  
Dft Calculations ◽  
Reduced Graphene Oxide ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Electrocatalytic Activity ◽  
Active Sites ◽  
Reduced Graphene ◽  
Effect Of Surface

The RGO-modified Ni electrode exhibited outstanding activity towards HER. DFT calculations indicate that H atoms, formed upon H2O discharge on Ni, spill onto the RGO, enabling continuous clearance of Ni-active sites.

Tethering mesoporous Pd nanoparticles to reduced graphene oxide sheets forms highly efficient electrooxidation catalysts

2017 ◽  
Vol 5 (40) ◽  
pp. 21249-21256 ◽  
Author(s):  
Muhammad Iqbal ◽  
Cuiling Li ◽  
Bo Jiang ◽  
Md. Shahriar A. Hossain ◽  
Md. Tofazzal Islam ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Pd Nanoparticles ◽  
Solution Phase ◽  
Phase Synthesis ◽  
Highly Efficient ◽  
Reduced Graphene ◽  
Solution Phase Synthesis ◽  
Graphene Oxide Sheets

Uniformly sized mesoporous palladium (Pd) nanoparticles supported on reduced graphene oxide (rGO) surfaces can be prepared by solution phase synthesis.

scholarly journals Electrodeposition–Assisted Assembled Multilayer Films of Gold Nanoparticles and Glucose Oxidase onto Polypyrrole-Reduced Graphene Oxide Matrix and Their Electrocatalytic Activity toward Glucose

Nanomaterials ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 993 ◽  
Author(s):  
Baoyan Wu ◽  
Shihua Hou ◽  
Yongyong Xue ◽  
Zhan Chen
Keyword(s):  
Gold Nanoparticles ◽  
Graphene Oxide ◽  
Glucose Oxidase ◽  
Reduced Graphene Oxide ◽  
Self Assembly ◽  
Electrocatalytic Activity ◽  
Multilayer Films ◽  
Glucose Biosensor ◽  
Future Design ◽  
Reduced Graphene

The study reports a facile and eco-friendly approach for nanomaterial synthesis and enzyme immobilization. A corresponding glucose biosensor was fabricated by immobilizing the gold nanoparticles (AuNPs) and glucose oxidase (GOD) multilayer films onto the polypyrrole (PPy)/reduced graphene oxide (RGO) modified glassy carbon electrode (GCE) via the electrodeposition and self-assembly. PPy and graphene oxide were first coated on the surface of a bare GCE by the electrodeposition. Then, AuNPs and GOD were alternately immobilized onto PPy-RGO/GCE electrode using the electrodeposition of AuNPs and self-assembly of GOD to obtain AuNPs-GOD multilayer films. The resulting PPy-RGO-(AuNPs-GOD)n/GCE biosensors were used to characterize and assess their electrocatalytic activity toward glucose using cyclic voltammetry and amperometry. The response current increased with the increased number of AuNPs-GOD layers, and the biosensor based on four layers of AuNPs-GOD showed the best performance. The PPy-RGO-(AuNPs-GOD)4/GCE electrode can detect glucose in a linear range from 0.2 mM to 8 mM with a good sensitivity of 0.89 μA/mM, and a detection limit of 5.6 μM (S/N = 3). This study presents a promising eco-friendly biosensor platform with advantages of electrodeposition and self-assembly, and would be helpful for the future design of more complex electrochemical detection systems.

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